PLoS ONE,
Journal Year:
2013,
Volume and Issue:
8(8), P. e72469 - e72469
Published: Aug. 14, 2013
Seagrass
meadows
are
highly
productive
habitats
that
provide
important
ecosystem
services
in
the
coastal
zone,
including
carbon
and
nutrient
sequestration.
Organic
seagrass
sediment,
known
as
"blue
carbon,"
accumulates
from
both
situ
production
sedimentation
of
particulate
water
column.
Using
a
large-scale
restoration
(>1700
ha)
Virginia
bays
model
system,
we
evaluated
role
seagrass,
Zosteramarina,
storage
sediments
shallow
ecosystems.
Sediments
replicate
representing
different
age
treatments
(as
time
since
seeding:
0,
4,
10
years),
were
analyzed
for
%
carbon,
nitrogen,
bulk
density,
organic
matter
content,
²¹⁰Pb
dating
at
1-cm
increments
to
depth
cm.
Sediment
accumulation
rates
higher
10-year
relative
4-year
bare
sediment.
These
differences
consistent
with
shoot
density
older
meadow.
Carbon
determined
restored
36.68
g
C
m⁻²
yr⁻¹.
Within
12
years
seeding,
expected
accumulate
rate
is
comparable
measured
ranges
natural
meadows.
This
first
study
evidence
potential
habitat
enhance
sequestration
zone.
Physics of Fluids,
Journal Year:
2025,
Volume and Issue:
37(1)
Published: Jan. 1, 2025
Submerged
aquatic
vegetation
(SAV)
changes
the
turbulent
structure
of
rivers,
wetlands,
estuaries,
and
lakes.
However,
few
studies
have
focused
on
influence
SAV
hydrodynamic
characteristics
under
wind-induced
flow.
Therefore,
laboratory
experiments
were
conducted
to
study
effects
flow
turbulence
flow,
spectral
based
decomposition
method
was
used
separate
wave
velocity.
Result
shows
that
reduced
local
velocity
within
canopy
elevates
location
zero-velocity
point.
The
drag
caused
by
increases
decay
rate
Reynolds
stress
along
depth
while
hardly
influencing
stress.
Canopy
depresses
RMS
(root
mean
square)
orbital
presence
leads
decrease
in
TKE
(turbulent
kinetic
energy)
production
dissipation
canopy.
more
effectively
diminishes
than
it
does
dissipation.
Research
isotropy
flows
promotes
a
gradual
transition
from
anisotropy
Finally,
quadrant
analysis
reveals
probabilities
contribution
momentum
ejection
sweep.
PLoS ONE,
Journal Year:
2017,
Volume and Issue:
12(4), P. e0176630 - e0176630
Published: April 27, 2017
Most
information
on
seagrass
carbon
burial
derives
from
point
measurements,
which
are
sometimes
scaled
by
meadow
area
to
estimate
stocks;
however,
sediment
organic
(Corg)
concentrations
may
vary
with
distance
the
edge,
resulting
in
spatial
gradients
that
affect
accuracy
of
stock
estimates.
We
mapped
Corg
throughout
a
large
(6
km2)
restored
determine
whether
distribution
patterns
exist
at
different
scales.
The
originated
≤1-acre
plots
seeded
between
2001
and
2004,
so
we
expected
spatially
according
known
age
sample
sites
proximity
edge.
Applying
autoregressive
models
allowed
us
control
for
autocorrelation
quantify
relative
effects
edge
concentrations.
found
proximity,
not
age,
significantly
predicted
meadow-scale
distribution.
also
evaluated
relationships
variety
specific
explanatory
variables,
including
site
exposure,
shoot
density,
grain
size,
bathymetry.
Factors
plot-scale,
such
as
were
significant
controls
Strong
correlations
Corg,
suggest
current
attenuation
increases
fine-sediment
deposition
and,
therefore,
into
meadow.
By
mapping
pool,
provide
first
accurate
quantification
an
enhanced
attributable
restoration.
top
12
cm
bed
contain
3660
t
approximately
1200
more
than
equal
bare
sediment.
net
increase
is
concentrated
low
tidal
velocities.
Managers
should
account
configuration
velocity
when
estimating
blue
stocks.
Our
results
large,
contiguous
store
small
patches.
Limnology and Oceanography,
Journal Year:
2016,
Volume and Issue:
61(6), P. 1937 - 1955
Published: June 24, 2016
A
feedback
between
seagrass
presence,
suspended
sediment
and
benthic
light
can
induce
bistability
two
ecosystem
states:
one
where
the
presence
of
reduces
concentrations
to
increase
availability
thereby
favoring
growth,
another
absence
increases
turbidity
reducing
growth.
This
literature
review
identifies
(1)
how
environmental
meadow
characteristics
influence
strength
direction
(stabilizing
or
destabilizing)
seagrass-sediment-light
feedback,
(2)
this
has
been
incorporated
in
models
proposed
support
decision
making.
Large,
dense
meadows
shallow
subtidal,
non-eutrophic
systems,
growing
sediments
mixed
grain
size
subject
higher
velocity
flows,
have
greatest
potential
generate
via
feedback.
Conversely,
low
density,
area
height
enhance
turbulent
flows
that
interact
with
seabed,
causing
water
clarity
decline.
Using
a
published
field
experiment
as
case
study,
we
show
only
if
sufficient
attenuation
properties.
The
considered
very
few
models.
These
identify
areas
occurs,
which
is
information
assist
spatial
prioritization
conservation
restoration
efforts.
In
present
predicted,
recovery
may
be
difficult
once
lost.
bare
predicted
(without
bistability)
better
targets
for
than
predicted.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
928, P. 172247 - 172247
Published: April 9, 2024
Creating
ecosystem
buffers
in
intertidal
zones,
such
as
seagrass
meadows,
has
gained
increasing
attention
a
nature-based
solution
for
mitigating
storm-driven
coastal
erosion.
This
study
presents
what-if
scenarios
using
an
integrated
model
framework
to
determine
the
effectiveness
and
strategies
planting
reduce
The
comprises
two
levels
of
simulation
packages.
first
level
is
regional-scale
coupled
hydrodynamic
that
simulates
processes
specific
storm
provides
boundary
forces
morphodynamic
XBeach
apply
at
next
level,
which
nearshore
morphological
evolution.
applied
open
coast
Norderney
German
Bight
North
Sea.
We
demonstrate
optimising
location
size
meadows
crucial
increase
efficiency
onshore
sediment
erosion
mitigation.
For
depth
range,
depending
on
storm's
intensity,
most
significant
reduction
may
not
be
achieved
by
starting
meadow
permits
largest
size.
To
maintain
protection
effect,
density
stem
height
should
considered
together,
ensuring
least
80
%
compared
unprotected
coast.
valuable
insights
design
implementation
transplantation
solution,
highlighting
importance
considering
location,
size,
density,
when
protection.
Frontiers in Marine Science,
Journal Year:
2015,
Volume and Issue:
2
Published: June 9, 2015
Seagrass
ecosystems
provide
numerous
ecosystem
services
that
support
coastal
communities
around
the
world.
They
sustain
abundant
marine
life
as
well
commercial
and
artisanal
fisheries,
help
protect
shorelines
from
erosion.
Additionally,
seagrass
meadows
are
a
globally
significant
sink
for
carbon
represent
key
combating
climate
change.
However,
habitats
suffering
rapid
global
decline.
Despite
recognition
of
importance
'Blue
Carbon',
no
functioning
restoration
or
conservation
projects
supported
by
finance
currently
operate,
policies
frameworks
to
achieve
this
have
not
been
developed.
Yet,
could
play
central
role
in
addessing
important
international
research
questions
regarding
natural
mechanisms
through
which
ocean
seabed
can
mitigate
change,
how
structure
links
service
provision.
The
relative
inattention
received
represents
both
serious
oversight
major
missed
opportunity.
In
paper
we
review
prospects
further
inclusion
policy
frameworks,
with
particular
focus
on
storage
sequestration,
potential
developing
payment
(PES)
schemes
complementary
management.
Prospects
Blue
Carbon
regulatory
compliance
markets
limited;
yet
despite
risks
voluntary
sector
offers
most
immediately
attractive
avenue
development
credits.
Given
array
viable
route
combat
ensure
improve
livelihoods
may
be
complement
any
payments
PES
based
provision
additional
services.
Remote Sensing in Ecology and Conservation,
Journal Year:
2018,
Volume and Issue:
5(2), P. 121 - 135
Published: Nov. 21, 2018
Abstract
There
is
growing
interest
in
the
use
of
Unoccupied
Aerial
Systems
(
UAS
)
for
mapping
and
monitoring
seagrass
habitats.
provide
flexibility
with
timing
imagery
capture,
are
relatively
inexpensive,
obtain
very
high
spatial
resolution
compared
to
acquired
from
sensors
mounted
on
satellite
or
piloted
aircraft.
However,
research
date
has
focused
applications
exposed
intertidal
areas
clear
tropical
waters.
In
contrast,
submerged
meadows
temperate
regions
subject
cloud
cover
water
column
turbidity,
which
may
limit
application
coastal
habitat
mapping.
To
test
constraints
mapping,
we
examined
effects
five
environmental
conditions
at
time
image
acquisition
(sun
angle,
tidal
height,
cover,
Secchi
depth
wind
speed)
site
characteristics
(eelgrass
patchiness
density,
presence
density
non‐eelgrass
aquatic
vegetation,
sediment
tone,
eelgrass
deep
edge
exposure)
26
Zostera
marina
sites
British
Columbia,
Canada.
Eelgrass
was
delineated
orthomosaics
using
object‐based
analysis,
combining
segmentation
manual
classification.
Each
ranked
according
analysts’
confidence
eelgrass.
Robust
Linear
Regression
revealed
sun
angle
‘
theoretical
visibility’
(an
aggregate
depth,
conditions)
be
most
important
variables
affecting
confidence.
general,
ideal
included:
(1)
angles
below
40°;
(2)
positive
visibility
depths
>5
m;
(3)
<10%
>90%;
(4)
speeds
less
than
5
km
h
−1
.
Additionally,
achieved
dense,
continuous,
homogeneous
meadows.
The
results
this
analysis
will
guide
implementation
technologies
regions.
